Paul
John, W1TAG and I found a good way to evaluate software was to run controlled
testing between our two stations. The transmit end was configured to easily
change power in 1 dB steps so that accurate measurements could be made. We
would run the first set of tests during mid day so there was low noise, phase
shift and skywave interference. The second test was during nightime conditions
... with all of the above anomolies. We would test for weak signal performance,
static immunity and decoder recovery time after loss of signal during the
transmission. While we often couldn't put 'precise' numbers on the various
modes (especially at night) we could usually resolve things to a couple dB.
Comparing one mode against another during these tests definately gave a 'feel'
for what modes worked well up to expectation ... and those that didn't.
Jay W1VD
----- Original Message -----
From: N1BUG <[email protected]>
Reply-To: <[email protected]>
To: <[email protected]>, <[email protected]>
Sent: 11/13/2018 6:56:40 AM
Subject: LF: 630m JT9-2 last night
________________________________________________________________________________
Below is my list of JT9-2 decodes from last night. I think we had a
good amount of participation in the test.
The only concern I have is that there were very few decodes below
-27 or "standard JT9" level. This suggests one of two things. Either
1) There are not many very weak signals arriving at my station
or
2) In real world conditions the software is having problems decoding
the really weak ones
I do not know which it is. The weak ones I did see were early,
before QRN built up to overnight levels. Perhaps more testing will
result in some better answers. What are others seeing for reported SNR?
2142 -17 0.4 1102 2 CQ NO3M EN91
2154 -17 0.7 1101 2 K5DNL NO3M -25
2158 -14 0.5 1101 2 K5DNL NO3M -25
2224 -23 0.3 1374 2 TST KU4XR 73
2228 -22 0.3 1372 2 TST KU4XR 73
2236 -22 0.2 1370 2 TST KU4XR 73
2240 -27 0.3 1370 2 TST KU4XR 73
2304 -22 0.3 1366 2 TEST KU4XR 73
2306 -11 2.1 1102 2 K5DNL NO3M RRR
2306 -26 0.5 1225 2 CQ WB4JWM EM83
2312 -17 0.3 1367 2 TEST KU4XR 73
2316 -30 0.3 1200 2 VVV DE K5DNL
2328 -28 0.1 1200 2 VVV DE K5DNL
2334 -18 0.2 1200 2 K5DNL KU4XR EM75
2336 -29 0.2 1200 2 VVV DE K5DNL
2340 -25 0.1 1200 2 VVV DE K5DNL
2346 -22 0.3 1364 2 K5DNL KU4XR R-02
2348 -23 0.3 1372 2 KU4XR K5DNL RRR
2352 -22 0.4 1372 2 KU4XR K5DNL 73
0000 -24 0.1 1200 2 VVV DE K5DNL
0004 -21 0.4 1200 2 VVV DE K5DNL
0012 -25 0.3 1200 2 VVV DE K5DNL
0024 -17 0.3 1200 2 VVV DE K5DNL
0028 -24 0.3 1200 2 VVV DE K5DNL
0034 -21 0.3 1370 2 TEST KU4XR 73
0036 -28 0.3 1200 2 VVV DE K5DNL
0040 -21 0.5 1200 2 VVV DE K5DNL
0042 -19 0.2 1364 2 TEST KU4XR 73
0046 -17 0.2 1362 2 TEST KU4XR 73
0048 -14 0.3 1200 2 VVV DE K5DNL
0052 -21 0.2 1200 2 VVV DE K5DNL
0100 -22 0.3 1200 2 VVV DE K5DNL
0104 -21 0.3 1200 2 VVV DE K5DNL
0106 -9 0.3 1200 2 K5DNL K3MF FM19
0106 -16 0.3 1361 2 TEST KU4XR 73
0112 -25 0.3 1200 2 VVV DE K5DNL
0116 -23 0.2 1200 2 K3MF K5DNL -15
0118 -7 0.3 1201 2 K5DNL K3MF R-15
0122 -8 0.3 1200 2 K5DNL K3MF 73
0122 -19 0.1 1360 2 TEST KU4XR 73
0124 -19 0.3 1200 2 K3MF K5DNL 73
0128 -22 0.2 1200 2 CQ K5DNL EM15
0130 -18 0.3 1360 2 TEST KU4XR 73
0136 -19 0.3 1200 2 VVV DE K5DNL
0140 -25 0.3 1200 2 VVV DE K5DNL
0146 -18 0.3 1360 2 TEST KU4XR 73
0148 -27 0.3 1200 2 VVV DE K5DNL
0152 -25 0.5 1200 2 VVV DE K5DNL
0158 -17 0.3 1360 2 TEST KU4XR 73
0200 -19 0.3 1200 2 VVV DE K5DNL
0204 -16 0.3 1200 2 VVV DE K5DNL
0212 -19 0.4 898 2 VE7VV K5DNL EM15
0216 -22 0.1 898 2 VE7VV K5DNL EM15
0224 -17 0.3 898 2 VE7VV K5DNL EM15
0228 -22 0.1 1200 2 VVV DE K5DNL
0236 -16 0.3 1200 2 VVV DE K5DNL
0240 -17 0.2 1200 2 VVV DE K5DNL
0248 -27 0.1 1200 2 VVV DE K5DNL
0252 -19 0.3 1200 2 VVV DE K5DNL
0300 -18 0.3 1200 2 VVV DE K5DNL
0304 -23 0.2 1200 2 VVV DE K5DNL
0312 -26 0.2 1200 2 VVV DE K5DNL
0316 -21 0.4 1200 2 VVV DE K5DNL
0324 -25 0.3 1200 2 VVV DE K5DNL
0328 -24 0.3 1200 2 VVV DE K5DNL
0336 -26 0.1 1200 2 VVV DE K5DNL
0340 -26 0.4 1200 2 VVV DE K5DNL
0348 -16 0.4 1200 2 VVV DE K5DNL
0352 -23 0.3 1200 2 VVV DE K5DNL
0400 -21 0.3 1200 2 VVV DE K5DNL
0404 -14 0.4 1200 2 VVV DE K5DNL
0410 -11 0.3 998 2 CQ WA9CGZ EN61
0412 -18 0.1 1200 2 VVV DE K5DNL
0416 -22 0.3 1200 2 VVV DE K5DNL
0428 -23 0.1 1200 2 VVV DE K5DNL
0436 -18 0.2 1200 2 VVV DE K5DNL
0440 -17 0.1 1200 2 VVV DE K5DNL
0448 -16 0.3 1200 2 VVV DE K5DNL
0452 -22 0.1 1200 2 VVV DE K5DNL
0500 -16 0.3 1200 2 VVV DE K5DNL
0504 -20 0.3 1200 2 VVV DE K5DNL
0512 -17 0.3 1200 2 VVV DE K5DNL
0516 -14 0.3 1200 2 VVV DE K5DNL
0524 -15 0.2 1200 2 VVV DE K5DNL
0528 -17 0.3 1200 2 VVV DE K5DNL
0536 -18 0.2 1200 2 VVV DE K5DNL
0540 -14 0.1 1200 2 VVV DE K5DNL
0548 -21 0.4 1200 2 VVV DE K5DNL
0552 -18 0.4 1200 2 VVV DE K5DNL
0600 -18 0.3 1200 2 VVV DE K5DNL
0604 -18 0.3 1200 2 VVV DE K5DNL
0612 -16 0.3 1200 2 VVV DE K5DNL
0616 -13 0.3 1200 2 VVV DE K5DNL
0624 -11 0.3 1200 2 VVV DE K5DNL
0628 -12 0.3 1200 2 VVV DE K5DNL
0636 -20 0.1 1200 2 VVV DE K5DNL
0640 -16 0.0 1200 2 VVV DE K5DNL
0648 -16 0.4 1200 2 VVV DE K5DNL
0652 -22 0.2 1200 2 VVV DE K5DNL
0700 -26 0.3 1200 2 VVV DE K5DNL
0704 -16 0.3 1200 2 VVV DE K5DNL
0712 -15 0.3 1200 2 VVV DE K5DNL
0716 -15 0.3 1200 2 VVV DE K5DNL
0724 -15 0.2 1200 2 VVV DE K5DNL
0728 -16 0.3 1200 2 VVV DE K5DNL
0736 -22 0.3 1200 2 VVV DE K5DNL
0740 -16 0.4 1200 2 VVV DE K5DNL
0748 -19 0.6 1200 2 VVV DE K5DNL
0752 -21 0.5 1200 2 VVV DE K5DNL
0758 -7 0.3 1100 2 CQ NO3M EN91
0800 -17 0.3 1200 2 VVV DE K5DNL
0804 -15 0.3 1200 2 VVV DE K5DNL
0806 -4 0.3 1100 2 CQ NO3M EN91
0812 -17 0.3 1200 2 VVV DE K5DNL
0816 -19 0.2 1200 2 VVV DE K5DNL
0824 -18 0.3 1200 2 VVV DE K5DNL
0828 -21 0.0 1200 2 VVV DE K5DNL
0836 -17 0.1 1200 2 VVV DE K5DNL
0840 -21 0.3 1200 2 VVV DE K5DNL
0848 -18 0.3 1200 2 VVV DE K5DNL
0852 -18 0.3 1200 2 VVV DE K5DNL
0900 -13 0.3 1200 2 VVV DE K5DNL
0904 -13 0.2 1200 2 VVV DE K5DNL
0912 -18 0.3 1200 2 VVV DE K5DNL
0916 -15 0.2 1200 2 VVV DE K5DNL
0924 -20 0.1 1200 2 VVV DE K5DNL
0928 -14 0.3 1200 2 VVV DE K5DNL
0934 -5 0.4 1100 2 KM5SW NO3M RRR
0936 -20 0.3 1200 2 VVV DE K5DNL
0940 -21 0.3 1200 2 VVV DE K5DNL
0946 -6 0.3 1100 2 CQ NO3M EN91
0948 -18 0.3 1200 2 VVV DE K5DNL
0952 -15 0.2 1200 2 VVV DE K5DNL
0954 -2 0.2 1100 2 CQ NO3M EN91
0958 -3 0.1 1100 2 CQ NO3M EN91
1000 -17 0.1 1200 2 VVV DE K5DNL
1004 -23 0.3 1200 2 VVV DE K5DNL
1006 -3 0.3 1100 2 CQ NO3M EN91
1012 -17 0.3 1200 2 VVV DE K5DNL
1016 -24 0.3 1200 2 VVV DE K5DNL
1024 -24 0.4 1200 2 VVV DE K5DNL
1028 -29 0.3 1200 2 VVV DE K5DNL
1036 -23 0.2 1200 2 VVV DE K5DNL
1040 -21 0.2 1200 2 VVV DE K5DNL
1048 -19 0.3 1200 2 VVV DE K5DNL
1052 -18 0.2 1200 2 VVV DE K5DNL
1100 -25 0.1 1200 2 VVV DE K5DNL
1104 -25 0.1 1200 2 VVV DE K5DNL
1112 -19 0.2 1201 2 VVV DE K5DNL
1116 -26 0.2 1200 2 VVV DE K5DNL
1124 -26 0.1 1200 2 VVV DE K5DNL
73,
Paul N1BUG
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